Organic chemistry

Back on the date of June 18, 1773 Joseph Priestley was in his science lab exploring and studying about the elements. Priestley had done a lot of experiments to find more about the element now known as oxygen. The first experiment dealt with using the previous methods Carl W. Scheele used. Carl W. Scheele was a chemist from sweden, but in his discovery of oxygen he had other people helping him throughout the process. Joseph had thought in his mind, “ If I can do this scientific inquiry on my own,…

The element Titanium is a very light metal and it’s in the periodic table group 4. This element is a transition metal and the symbol is Ti. The color of titanium is a silver grey and white color. The atomic mass is 47.867 and atomic number is 22. This element however is resistant to chlorine, and sea water. It has 22 electrons, 22 protons, and 26 neutrons. The density is 4.54 The discoverer who found titanium is William Gregor a Mineralogist. The year it was discovered was in 1791. Where it had…

Both IR and UV spectroscopy are methods of measuring the wavelengths absorbed by a tested material. IR spectroscopy measures the absorbance of the tested material in the infrared spectrum, the section of the electromagnetic spectrum with a lower frequency than that observed in the visible light spectrum. Conversely, UV spectroscopy measures the absorbance of the tested material in the ultraviolet spectrum, the section of the electromagnetic spectrum with a higher frequency than that observed in…

Chromatography is a key aspect in chemistry. It allows one to separate molecules based on a variety of things. In labs 3 and 4 we looked at two of the characteristics that molecules carry that can help separate them. Lab 3 used spectrophotometry once again, but the concept that garnered the most interest was ion exchange chromatography. Ion exchange chromatography works by separating molecules based on the individual charges they carry. In our case we used anion exchange chromatography, which…

In the results of the first trial, two lemons were used and the light bulb did not turn on. The voltage was 1.72v. When 4 lemons were used, the light bulb still did not turn on. The voltage was 2.89v. Then, with 6 lemons, the light bulb finally turned on. The voltage was 3.96v. The average voltage for trial one was 2.86v, and the range for trial one was 2.24v. In the first trial, the mode was not applicable. In the results of the second trial, two lemons were used and the light bulb did not turn…

What is a camera obscura? What is the principal of optics that makes it work? “A camera obscura, which is literally means ‘darkened room.’ It uses a lens and a sequence of mirrors to project an image of the surrounding landscape onto a viewing surface.” (http://www.scopex.co.za/files/Camera-obscura-ML-1207.pdf) “The principle of optics that makes it work was light travels in a straight line and when some of the rays reflected form a bright subject passes through a small hole in thin material…

"Energy Story", "Hands-On Science with Squishy Circuits" and "Conducting Solutions". All very informative sources about electricity and how its conducted. In Energy Story what the author is explaining the basics of the science behind the amazing process that allows us to have electronic instruments that run on this source of energy. The purpose of the article "Energy Story", is to inform the reader about the scientific force behind this process, and what goes on when we flip a light switch. It…

Amnion Tissue In this project, I also with amnion tissue collection, ChIP preparation and Real-time PCR technique. The aim of this work was to determine the gene activating H3K4me3 and gene repressing H3K27me3 levels and their ratios at the promoter regions of NAMPT inflammatory gene. Collection of Tissue Fetal membranes were collected from women undergoing elective cesarean section at absence of labour [not in labour (NIL), n = 5], during active labour [in labour (IL), n = 4] and preterm (n=5)…

Experiment 1.) When I rubbed my fingers over the sandpaper the coarseness was a 5 on scale of 7. After two min wait the coarseness is a little soft and I would say it felt like a 2 on a scale of 7. My perception change because I honestly though that the sand paper would stay the same. Looking back I guess I should have known because I did go over the sandpaper a couple of times. By doing that I allow my fingers to weaken the sandpaper. 2.) What surprise me is that some of the sugar was still in…

The element Magnesium got its name when it was discovered. It is a silvery white metal that is highly reactive. Its chemical symbol is Mg and atomic number is 12. Its atomic mass is relatively 24. Therefore, it has 12 protons, 12 neutrons, and 12 electrons. According to Steve Gagnon in “The Element Magnesium” Magnesium was isolated by Sir Humphry Davy, an English chemist, through the electrolysis of a mixture of magnesium oxide and mercuric oxide in 1808. Magnesium has a melting point of 650°…